b84ca44535cc1919511e0914a0845133264b3443ecb51c6f6eab83a6d15304c4

Analysis

max time kernel
146s
max time network
155s
platform
windows10-2004_x64
resource
win10v2004-20231215-en
resource tags

arch:x64arch:x86image:win10v2004-20231215-enlocale:en-usos:windows10-2004-x64system
submitted
30/12/2023, 14:28

Sharing

Copy URL

Twitter E-mail

Report Analysis Logs

General

Target

1b6f217e596aaffbb868315f5da6f291.exe
Size

36KB
MD5

1b6f217e596aaffbb868315f5da6f291
SHA1

cde527d83610c942d0e6ed19b58fd447630d752a
SHA256

b84ca44535cc1919511e0914a0845133264b3443ecb51c6f6eab83a6d15304c4
SHA512

dd220c6a514d671ab369391911a9e6d90a9af7ddf8f5060df3cc4797b6d74154c187c8d30540a4197af478fe59e9452735f04ca8e95f14ca19a58aaa70c11164
SSDEEP

768:X8Q2ZDX3LKew369lp2z3Sd4baFXLjwP/Tgj93b8NIom46+Ij:s9Z3KcR4mjD9r8226++

Score

7^/10

persistence spyware stealer upx

Malware Config

Signatures

Executes dropped EXE 1 IoCs

pid	Process
1664	CTS.exe

Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
spyware stealer

Data from Local System
T1005

Credentials In Files
T1552.001

UPX packed file 6 IoCs

Detects executables packed with UPX/modified UPX open source packer.

upx

resource	yara_rule
behavioral2/memory/4856-0-0x0000000000C90000-0x0000000000CA7000-memory.dmp	upx
behavioral2/files/0x000600000002321a-7.dat	upx
behavioral2/memory/1664-9-0x0000000000DC0000-0x0000000000DD7000-memory.dmp	upx
behavioral2/memory/4856-8-0x0000000000C90000-0x0000000000CA7000-memory.dmp	upx
behavioral2/files/0x000500000002270a-12.dat	upx
behavioral2/files/0x0007000000023212-29.dat	upx

Adds Run key to start application 2 TTPs 2 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	1b6f217e596aaffbb868315f5da6f291.exe
Set value (str)	\REGISTRY\MACHINE\SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Run\CTS = "C:\\Windows\\CTS.exe"	CTS.exe

Drops file in Windows directory 2 IoCs

description	ioc	Process
File created	C:\Windows\CTS.exe	1b6f217e596aaffbb868315f5da6f291.exe
File created	C:\Windows\CTS.exe	CTS.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4856	1b6f217e596aaffbb868315f5da6f291.exe
Token: SeDebugPrivilege	1664	CTS.exe

Suspicious use of WriteProcessMemory 3 IoCs

description	pid	Process	procid_target
PID 4856 wrote to memory of 1664	4856	1b6f217e596aaffbb868315f5da6f291.exe	87
PID 4856 wrote to memory of 1664	4856	1b6f217e596aaffbb868315f5da6f291.exe	87
PID 4856 wrote to memory of 1664	4856	1b6f217e596aaffbb868315f5da6f291.exe	87

C:\Users\Admin\AppData\Local\Temp\1b6f217e596aaffbb868315f5da6f291.exe
"C:\Users\Admin\AppData\Local\Temp\1b6f217e596aaffbb868315f5da6f291.exe"
1⤵
- Adds Run key to start application
- Drops file in Windows directory
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4856
- C:\Windows\CTS.exe
  "C:\Windows\CTS.exe"
  2⤵
  - Executes dropped EXE
  - Adds Run key to start application
  - Drops file in Windows directory
  - Suspicious use of AdjustPrivilegeToken
  PID:1664

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

T1547

Registry Run Keys / Startup Folder

T1547.001

Defense Evasion

Modify Registry

T1112

Credential Access

Unsecured Credentials

T1552

Credentials In Files

T1552.001

Discovery

Lateral Movement

Collection

Data from Local System

T1005

Command and Control

Exfiltration

Impact

Replay Monitor

Loading Replay Monitor...

Downloads

C:\Users\Admin\AppData\Local\Microsoft\Office\16.0\excel.exe_Rules.xml

Filesize
358KB

MD5
6eb732dd898d890168319a11755acde1

SHA1
9405b069bba0b967a17f641d4785178b2116f126

SHA256
8208f056243c91ac37a8549a94adfdef45518b652f7550a40548febf9f2199de

SHA512
fcabd5b4fea39816466dcdda815282c1af4170f50429186e7eab47be655499c9bb32962359da0c37c5a77b2c5f6dfabfcc29dbbfb8741045886a2002c9b150f9

Download Submit
C:\Users\Admin\AppData\Local\Temp\hR5DZWV144QPLhK.exe

Filesize
36KB

MD5
e4873a00329ac3e05b6a87ccf5e676df

SHA1
974dde3d5f459f7b417bebdba082075a69ed9bb3

SHA256
128f889ee2206fafbe17c8df30937f30863905201676e8e6b465631b113701b7

SHA512
feea301f4a4efc53df08170fd329493273232bd61b37b81b42e1c7b66201f98d82c4b658de948bf850f4067adb445c466dd94073750331fddc32b1ade71d9a85

Download Submit
C:\Windows\CTS.exe

Filesize
35KB

MD5
93e5f18caebd8d4a2c893e40e5f38232

SHA1
fd55c4e6bcd108bce60ea719c06dc9c4d0adafa6

SHA256
a66c4b98becac2f69cb107cd087d7a2ca9ef511bc3b83367b1f440f11dd159a8

SHA512
986583610d27caae2080834301d072557c5d2c85e33f0d19ab1245d7eae8db146397461572ddb3d491be16f3af210720d54267dac838fdad8fe34afa3d6b7f54

Download Submit
memory/1664-9-0x0000000000DC0000-0x0000000000DD7000-memory.dmp

Filesize
92KB

Download
memory/4856-0-0x0000000000C90000-0x0000000000CA7000-memory.dmp

Filesize
92KB

Download
memory/4856-8-0x0000000000C90000-0x0000000000CA7000-memory.dmp

Filesize
92KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads